SDR CALA2022110903079

Service difficulty report · Battery Pack · Boeing 777222

Difficulty date: November 8, 2022
Submitted: November 9, 2022
Operation: Air carrier
Aircraft: N777UA
Make and model: Boeing 777222
Aircraft serial: 26916
Aircraft time: 101,800 hours, 18,248 cycles
System (JASC): 3350 · Emergency Lighting
Part: Battery Pack
Part number: D71701100
Condition: Discharged
Location: Emergency Lights
Stage of operation: IN
How discovered: C
Nature of condition: L
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

EMERGENCY LT BATTERY PACK DEEP CYCLE CHECK FOUND BATTERY PACK M3 3097 DISCHARGE LESS THAN 15 MINUTES. , SPEC NO.B777-33-3-7019. PERFORMED BY EMP V905477, REPLACED M33097 EMERGENCY LT BATTERY P ACKS, PERFORMED INSTALLATION TEST, FOUND NORMAL, REF AMM 33-51-0 6-960-802 & AMM 33-51-06-200-801 REV 96.